The Plant Centre at Hortus Loci re-opens on Good Friday near Hook on Hampshire.
Founder Mark Straver offers 4,000 plants including perennials, trees, shrubs and roses, as well as specimens in larger sizes than at garden centres.
There is an artisan coffee shop and previews of star plants for Chelsea 2017. The plant centre was formerly known as Whitewater.
Hortus Loci and Crocus are working together at Chelsea for the first time, on supplying plants for four RHS/BBC Radio 2 gardens.
Meanwhile, Chris Beardshaw is growing his own plants for his RHS Chelsea Flower Show Morgan Stanley show garden. Beardshaw is growing 2,000 herbaceous plants for the garden.